I seemed like

prefect.tasks.kubernetes.job.RunNamespacedJob

doesn't report properly to prefect server. I didn't receive any log from spawned kubernetes job at all. Here are my screenshots

To get the logs, you need to use an extra task:

ReadNamespacedPodLogs

Here is an example that shows how this can be used together with

RunNamespacedJob

RunNamespacedJob

already uses that, check it here https://github.com/PrefectHQ/prefect/blob/bc2d32d1fad886a911828e32b6ed7d50a7ee5102/src/prefect/tasks/kubernetes/job.py#L765 The log only printed to stdout, but didn't report back to server. Check the second image I post, it is kubernetes log of the flow